Problem connection between pc and cnc with OPC UA

[LucaBuzzi]

>Good morning, this is Luca and I'm new on this forum. I'm an italian student and in this moment I'm doing a thesis about a sensoring of a machine tool.
I have tried to search some similar topic in this forum, but I didn't try any solution.

I want to extract data from the cnc (the controller is Siemens 840d); Siemens has unlocked a OPC UA package on my cnc machine and in my pc I have installed UaExpert to acquire data.
But I have a problem, I can't connect my pc with the server of the machine.
I have attached a photo where you can see the messages error.

Could someone help me?

Thanks a lot.

[LucaBuzzi]

I can't attach the photo.
Anyway, the messages are:

" Connecting failed with error 'BadIdentityTokenRejected'
Error 'BadIdentityTokenRejected' was returning during Activate Session'
Used UserTokenType: UserName
ApplicationUri: 'urn192.168.0.2:miniweb'
Security policy: 'http//opcfoundation.org/UA/SecurityPolicity#Basic128Rsa15'
Endpoint: 'opc.tcp://192.168.0.2:4840' "

Thanks.

[Support Team]

Hello Luca,

please check with the server vendor if connecting to the server with username/password is possible at all. If so, please verify that you are using the correct username and password for connecting. You could also try to connect as anonymous user, maybe this works.